100c3fbc16ae172be2b6815453672db00b829f5948823df14ad2d54b273049b0

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
12/05/2024, 03:48

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General

Target

2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe
Size

40KB
MD5

4508b1ed294bec89f52411df0b408d03
SHA1

a2766131baa062011da268b6973fa5ab1ee49db3
SHA256

100c3fbc16ae172be2b6815453672db00b829f5948823df14ad2d54b273049b0
SHA512

49ca28c0cb485848f47f6f792b4435e6859dd5120aa78b9c5d8e25dc6f3e04350400bc22952c067d15b4cd32eb690a7d8e48aabaa557afcc6297cc1835875597
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3HwnCP:bA6YcA/X6G0W143QA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000141c0-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3048	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2136	2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 3048	2136	2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe	28
PID 2136 wrote to memory of 3048	2136	2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe	28
PID 2136 wrote to memory of 3048	2136	2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe	28
PID 2136 wrote to memory of 3048	2136	2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_4508b1ed294bec89f52411df0b408d03_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2136
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
41KB

MD5
05fe2eb8948c77997bf0456344149021

SHA1
70830e33b97cac336c2a090cb245f60ad049bb4f

SHA256
d4bcf9aff86016de64d62d82ac67f0bf420c79fb072d3178927a482b7e8716c4

SHA512
c130e711f77ac1c5280a37927145df3eb3b5c2f5ab1b4c130bbd344d84559578d5f570b0158c57653c731c0994c6a9d013772876a5bdded8e6329122ca9f55dd

Download Submit
memory/2136-1-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/2136-8-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2136-0-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/3048-15-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download
memory/3048-22-0x0000000002920000-0x0000000002926000-memory.dmp

Filesize
24KB

Download